Blog Tag Uses of the heating effect of current

Uses of the heating effect of current

Electric bulbs work because of the heating effect. A bulb has a long and thin tungsten filament (the curly wire inside). The filament has a higher resistance than ordinary wires. When a current passes through the filament it gets heated and starts to glow. But it does not melt because tungsten has a very high melting point. Electric heater, irons, to . . .

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